Which USB hub to use with Block Erupters | NanoFury NF1 | BPMC Red Fury | Ant U1 - page 7.

Trongersoll

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Quote from: mikenekro on November 13, 2013, 08:21:10 PM

will this device work to power all 10 miners?

http://www.newegg.com/Product/Product.aspx?Item=9SIA3C31421041

It's 12V 4A

yes, i get 8.7 amps at 5.5 volts that should power 16 devices. Don't for get that you probably want some cooling.

mikenekro

newbie

Activity: 57

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will this device work to power all 10 miners?

http://www.newegg.com/Product/Product.aspx?Item=9SIA3C31421041

It's 12V 4A

cxboyminer

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Quote from: Mudbankkeith on November 10, 2013, 08:24:34 AM

Quote from: cxboyminer on November 10, 2013, 07:59:47 AM

Which powered usb hub can a RasPi use?

USB3 are no good, Pi only lives with USB2

D-link 7 port is one of the most popular

ty a lot

Mudbankkeith

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Quote from: cxboyminer on November 10, 2013, 07:59:47 AM

Which powered usb hub can a RasPi use?

USB3 are no good, Pi only lives with USB2

D-link 7 port is one of the most popular

cxboyminer

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Which powered usb hub can a RasPi use?

visdude

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I wonder how these 49-port hubs do with the Blue and Red Furies. I'm hoping someone made an actual test/measurement with the actual devices and figured out how many can fit (i.e. if it is necessary to alternately skip ports either side-to-side or front-to-back or both ways to accommodate the larger Furies.

Tong

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Quote from: Conqueror on November 09, 2013, 09:42:49 AM

^^

I just wonder if this monster hide seven 5$hubs from e-bay inside with boosted +-wires pretending they are high-end device Grin

Nope, I can verify its not a cheapo eBay, circuitry is built better and meant to handle more, I had mine apart to check it out, I also got like 20 of those cheapo 10 port eBay hubs (for sale btw) and had those apart to verify they could handle the amperage and can tell you these are better built. I can't take a pic of mine apart due to its mining but will post a pic of the internals of the eBay ones once I get a chance.

Conqueror

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I was diagnosed with brain parasite

^^

I just wonder if this monster hide seven 5$hubs from e-bay inside with boosted +-wires pretending they are high-end device Grin

Mudbankkeith

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Quote from: Tong on November 09, 2013, 07:12:59 AM

Quote from: Conqueror on November 09, 2013, 06:38:28 AM

Any idea where to buy this beast hub bellow?

Quote from: CanaryInTheMine on October 28, 2013, 09:46:29 PM

Time to add an ASICMiner Block Eruper 49 port USB 2.0 hub to the list Grin

more pics here: https://bitcointalksearch.org/topic/m.3428585

Next add some some USB miners:

SilentSonicBoom has them in stock, very few left @ .43 btc shipped each:
https://bitcointalksearch.org/topic/closed-group-buy-31-asicminer-cubes-035-btc-28-38ghs-307095

I got custom made power adapters coming by end of weekend for dedicated non PC psu's.

Tong

No chance in the UK

Tong

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Quote from: Conqueror on November 09, 2013, 06:38:28 AM

Any idea where to buy this beast hub bellow?

Quote from: CanaryInTheMine on October 28, 2013, 09:46:29 PM

Time to add an ASICMiner Block Eruper 49 port USB 2.0 hub to the list Grin

more pics here: https://bitcointalksearch.org/topic/m.3428585

Next add some some USB miners:

SilentSonicBoom has them in stock, very few left @ .43 btc shipped each:
https://bitcointalksearch.org/topic/closed-group-buy-31-asicminer-cubes-035-btc-28-38ghs-307095

I got custom made power adapters coming by end of weekend for dedicated non PC psu's.

Tong

Conqueror

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Activity: 1354

Merit: 1020

I was diagnosed with brain parasite

Any idea where to buy this beast hub bellow?

Quote from: CanaryInTheMine on October 28, 2013, 09:46:29 PM

Time to add an ASICMiner Block Eruper 49 port USB 2.0 hub to the list Grin

more pics here: https://bitcointalksearch.org/topic/m.3428585

Next add some some USB miners:

Mudbankkeith

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Activity: 868

Merit: 1000

Quote from: philipma1957 on November 06, 2013, 03:57:10 PM

my 3x 49 port setup

Quote from: philipma1957 on November 06, 2013, 10:13:32 AM

I finally setup 3x 49 port hubs each one has about 40 -42 sticks

I found out that when I exceeded 125 sticks cpu use went nuts and the 125th stick read endless errors. not sure if the pc or bitminter software is the issue. windows 7 has a 127 usb device limit for 1 controller. this pc has a 5 port pcie usb card with a second controller so I should be able to go to 240 sticks or even 250. So when I got past the 127 device limit the cpu went nuts and the last stick added com284 just read endless errors. in the photo below it is at 6000 and change and counting up really fast

I pulled the stick out and have been running the 3 hubs with 122 sticks at 40.6 gh dead stable for a day.

3 hubs 3 extra psu's

better shot of the 3 hubs

everything uses 483 watts

when you figure the value of the heat ( weather is cold in NJ, USA) My net power drops from .16 cents to .10 cents a k watt.

So today I sold a coin for 260 at coinbase.

So at 511 mill diff for the next ten days this will earn .4btc worth 104 usd power used will be 11.57 net gain will be 92.34 usd.

if diff jumps to 664 mill the setup would do .33 btc worth 88 usd minus 11.57 power = 76.43 usd.

even at 2 bill it would earn money about 1.50 usd a day

I suspect your cutoff point of 125 sticks could also be down to maxing out your PSU's

A good psu is past its best at 80% of its its rated power.

0.51mA per stick * 125 sticks = 63.75A * 5V = 318.75W 80% correction 398.5W
This is for the erupters and PSU's as an absolute minimum.
The hubs also consume power. possibly another 20% bringing you to approx 500W

What is the 5V rating of your psu's? If its less than 33A then you will have reached your power limit. (some posts are saying 30A is needed for these hubs, it depends on psu efficiency)

PMB

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Quote from: philipma1957 on November 06, 2013, 03:57:10 PM

my 3x 49 port setup

Quote from: philipma1957 on November 06, 2013, 10:13:32 AM

I finally setup 3x 49 port hubs each one has about 40 -42 sticks

  some photos

I found out that when I exceeded 125 sticks cpu use went nuts and the 125th stick read endless errors. not sure if the pc or bitminter software is the issue. windows 7 has a 127 usb device limit for 1 controller. this pc has a 5 port pcie usb card with a second controller so I should be able to go to 240 sticks or even 250. So when I got past the 127 device limit the cpu went nuts and the last stick added com284 just read endless errors. in the photo below it is at 6000 and change and counting up really fast

I pulled the stick out and have been running the 3 hubs with 122 sticks at 40.6 gh dead stable for a day.

3 hubs 3 extra psu's

better shot of the 3 hubs

everything uses 483 watts

when you figure the value of the heat ( weather is cold in NJ, USA) My net power drops from .16 cents to .10 cents a k watt.

  So today I sold a coin for 260 at coinbase.

  So at 511 mill diff for the next ten days this will earn .4btc worth 104 usd power used will be 11.57 net gain will be 92.34 usd.

if diff jumps to 664 mill the setup would do .33 btc worth 88 usd minus 11.57 power = 76.43 usd.

even at 2 bill it would earn money about 1.50 usd a day

HI,

What PSU's are you using to feed the hubs?

regards,

P.

Nemo1024

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Nice setup. It's good to see those ASICMiner hubs in action and performing well.

philipma1957

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'The right to privacy matters'

Tong

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Quote from: Trongersoll on November 06, 2013, 11:35:36 AM

Quote from: CanaryInTheMine on October 29, 2013, 07:30:49 PM

@ Nemo, I think the current cost per port is 0 if buying 50 units...

This is so untrue. Nothing is free. Instead of giving you a quantity discount for buying 50 they are applying the savings to the cost of Hub. This just makes it harder to see the actual cost.

BUT WAIT, THERE'S MORE!!!

These come with out power supplies, so you need to figure in the cost of a power supply when figuring the per port costs as well.

"Free with purchase" is never Free.

.10 btc for a dedicated 5v psu
.09 for the custom made cable to connect it to the hub

So your new hub costs you .0039 per port as long as you order 50 B.E.

Grab the B.E.'s put them on eBay, earn a profit so the hub + psu + cable is free with $ left over for other things....

You're right it's not free with purchase, it MAKES you money to take it off their hands.

Tong

Trongersoll

hero member

Activity: 490

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Quote from: CanaryInTheMine on October 29, 2013, 07:30:49 PM

@ Nemo, I think the current cost per port is 0 if buying 50 units...

This is so untrue. Nothing is free. Instead of giving you a quantity discount for buying 50 they are applying the savings to the cost of Hub. This just makes it harder to see the actual cost.

BUT WAIT, THERE'S MORE!!!

These come with out power supplies, so you need to figure in the cost of a power supply when figuring the per port costs as well.

"Free with purchase" is never Free.

PMB

member

Activity: 109

Merit: 10

Hi,

Logilink UA0096 HUB 10 Ports with Adapter 5V 3.5A - About 20€ ~ 27 USD - Will work with 6 Ports Ok, 7 Ports will work but you are pushing it - 3.57 Amp ...

regards,

P.

xjack

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Activity: 539

Merit: 500

Just found a cheap ATX supply to run the Block Erupter 49 Port Hub and Cambrionix 49 port. 5v@38A

Logisys Corp. 550W Power Supply PS550E12BK

Only a few hours of hashing with this P/S, but my total hashrate is within 5 MH/s of its previous rate on fossil ATX units.

terrapinflyer

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Quote from: terrapinflyer on October 29, 2013, 05:12:22 AM

Quote from: Nemo1024 on October 29, 2013, 04:25:55 AM

Quote from: CanaryInTheMine on October 28, 2013, 09:46:29 PM

Time to add an ASICMiner Block Eruper 49 port USB 2.0 hub to the list Grin

Nice! I've added it to the Special Hubs section. However, I am still trying to find how much they cost by themselves to calculate price per port, or do you need to by 50BEs to get a hub?

Quote from: terrapinflyer on October 29, 2013, 04:09:51 AM

Okay got this far and once again thanks. My next question is what is a safe load to run? If my PSU is rated at +5V 22A it should support 44 erupters. Now that is maxing it out at 110VA I know that cant be okay, so my question is at what capacity can I run this or any PSU? I was thinking of running 35 off it and two fans at 12V .85A so that is just about 80% of the +5V 22A rating. Also will that cause voltage drop because I am pulling more than 5A through an 18 gauge wire?

It depends on how well your ATX supply delivers on the 5V rail. I mentioned it before that I have 2 different ATX'es with 25A on 5V., and the older ATX model could power way more BEs than the new one.

You 22A ATX should be good for about 35 BEs (22A/0.6A = 36.6). Just make sure you don't draw more than 8A from a single 4-pin Molex and not more than 12A from a single string (though, again, depending on your ATX, you may get away with 16A per string). You will know if you draw too much, if some of the BEs will randomly stop hashing and light solid green.

Thanks again Nemo I should have this all fixed up today, hopefully. Ill post some pics and maybe it will help someone else with some of the same questions.

Okay so I had some time today to put this all together and test it. I made an album to share some pics of the final project. Thanks again for you help here.
So I found these two PSU's in the recycle bin at the dump where I often pic parts from. This whole project cost me less than $20 and looks about a million times better than having all the hubs plugged into 3 power strips.
Hope this will help some others interested in doing this. http://imgur.com/a/QWLUt#0

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